In general, \(Q_{A}^{\mu }\)  can be split relative to the total four-velocity \(U^{\mu }\)  as [1]}, [2]}
\( Q_{A}^{\mu }&=&{Q}_{A}U^{\mu }_{A}+F^{\mu }_{A},\quad Q_{A}=\bar{Q}_{A}+\delta Q_{A},\quad U_{\mu }^{A}F^{\mu }_{A}=0,\nonumber \\\bar{Q}_{DM}&=&-\bar{Q}_{DE}\ne 0=\bar{Q}_{b}=-\bar{Q}_{r},\nonumber \\\delta {Q}_{DM}&=&-\delta {Q}_{DE}\ne 0=\delta {Q}_{b}=-\delta {Q}_{r},\) 
